Question

How do you solve the exponential inequality `5^(x-4)<=25^(x-6)`?

Answer 1

`x ge 8`

Explanation:

`5^(x-4) le 5^(2(x-6))` but `5 > 1` then

`x-4 le 2(x-6)->-4 le x-12->x ge 8`